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1.54ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG621455497

Shape and cutting style on the report: Round brilliant

Certificate IGI LG621455497

Diamond specifications and retailer prices

From $382 NZD
As of November 3, 2026
Save $1,515 NZD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,898 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 1.54ct lab-grown round diamond

This 1.54ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG621455497 or 621455497. Listed at 14 retailers as of November 3, 2026, with prices from $382 to $1,898, a $1,515 spread on the same certified stone. MOH London lists it at $1,898. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.54
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621455497
Dimensions7.48 × 7.42 × 4.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.48 mm7.42 mm1.54 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG621455497
Side View
Table 58.0%Crown 34°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $1,898 NZD|Low: $331 NZD|High: $1,938 NZD|Avg: $950 NZD|-2.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 5, 2026
Retailer 12$382 NZD
Retailer 10$445 NZD
Retailer 9$475 NZD
Retailer 15$475 NZD
Retailer 8$736 NZD
Retailer 4$786 NZD
Retailer 5$813 NZD
Retailer 14$822 NZD
Retailer 2$868 NZD
Retailer 3$1,062 NZD
Retailer 13$1,526 NZD
Retailer 11$1,532 NZD
Retailer 7$1,583 NZD
Retailer 6$1,670 NZD
MOH London$1,898 NZD

38 data points across 15 retailers

14 retailers$382 NZD to $1,898 NZD

A
Cheapest Retailer
-
$382 NZD
A
Retailer 2
-
$445 NZD
View
A
Retailer 3
-
$475 NZD
View
Retailer 4
-
$475 NZD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$736 NZD
View
A
Retailer 6
-
$786 NZD
View
B+
Retailer 7
-
$813 NZD
View
B+
Retailer 8
-
$868 NZD
View
B+
Retailer 9
-
$1,062 NZD
View
B
Retailer 10
-
$1,526 NZD
View
B
Retailer 11
-
$1,532 NZD
View
B
Retailer 12
-
$1,583 NZD
View
B
Retailer 13
-
$1,670 NZD
View
Most Expensive
B
MOH London
LG621455497 · Nov 5
$1,898 NZD
£840 GBP
View
13 more retailers have this diamond
Prices start from $382 NZDSave up to $1,515 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.54ct Round
$382 NZD